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/* -----------------------------------------------------------------------------
*
* (c) The GHC Team, 2017-2021
*
* IPE API
*
* Do not #include this file directly: #include "Rts.h" instead.
*
* To understand the structure of the RTS headers, see the wiki:
* https://gitlab.haskell.org/ghc/ghc/wikis/commentary/source-tree/includes
*
* -------------------------------------------------------------------------- */
#pragma once
typedef struct InfoProv_ {
const char *table_name;
const char *closure_desc;
const char *ty_desc;
const char *label;
const char *module;
const char *srcloc;
} InfoProv;
typedef struct InfoProvEnt_ {
const StgInfoTable *info;
InfoProv prov;
} InfoProvEnt;
/*
* On-disk representation
*/
/*
* A byte offset into the string table.
* We use offsets rather than pointers as:
*
* a. they are smaller than pointers on 64-bit platforms
* b. they are easier on the linker since they do not need
* to be relocated
*/
typedef uint32_t StringIdx;
// This is the provenance representation that we emit to
// object code (see
// GHC.GHC.StgToCmm.InfoTableProv.emitIpeBufferListNode).
//
// The size of this must be a multiple of the word size
// to ensure correct packing.
typedef struct {
const StgInfoTable *info;
StringIdx table_name;
StringIdx closure_desc;
StringIdx ty_desc;
StringIdx label;
StringIdx module_name;
StringIdx srcloc;
} IpeBufferEntry;
GHC_STATIC_ASSERT(sizeof(IpeBufferEntry) % (WORD_SIZE_IN_BITS / 8) == 0, "sizeof(IpeBufferEntry) must be a multiple of the word size");
typedef struct IpeBufferListNode_ {
struct IpeBufferListNode_ *next;
// Everything below is read-only and generated by the codegen
const char *string_table;
StgWord count;
IpeBufferEntry entries[];
} IpeBufferListNode;
void registerInfoProvList(IpeBufferListNode *node);
InfoProvEnt *lookupIPE(const StgInfoTable *info);
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